Table 5.3 -Samples of 100 Checks Each Were Taken at a Bank

question 131

Multiple Choice

Table 5.3

-Samples of 100 checks each were taken at a bank from an encoding machine (which records the amount of a check) over a five-day period. Details are summarized in Table 5.3. If the bank were to use the average proportion defective from these five samples as the central line for a process control chart, what would be the central line?

• A) less than or equal to 0.01
• B) greater than 0.01 but less than or equal to 0.02
• C) greater than 0.02 but less than or equal to 0.03
• D) greater than 0.03